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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH 05/21] powerpc/powernv: Don't clobber r9 in relative_toc()
Date: Sat, 10 Sep 2011 11:19:52 -0300	[thread overview]
Message-ID: <1315664408-16797-5-git-send-email-benh@kernel.crashing.org> (raw)
In-Reply-To: <1315664408-16797-1-git-send-email-benh@kernel.crashing.org>

With OPAL, r8 and r9 will be used to pass the OPAL base and entry
for debugging purposes (those informations are also in the
device-tree). We don't want to clobber those registers that
early.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/head_64.S |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 3564c49..e708abe 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -674,9 +674,9 @@ _GLOBAL(enable_64b_mode)
 _GLOBAL(relative_toc)
 	mflr	r0
 	bcl	20,31,$+4
-0:	mflr	r9
-	ld	r2,(p_toc - 0b)(r9)
-	add	r2,r2,r9
+0:	mflr	r11
+	ld	r2,(p_toc - 0b)(r11)
+	add	r2,r2,r11
 	mtlr	r0
 	blr
 
-- 
1.7.4.1

  parent reply	other threads:[~2011-09-10 14:20 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-10 14:19 [PATCH 01/21] powerpc/udbg: Fix Kconfig entry for avoiding 44x early debug with KVM Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 02/21] powerpc/smp: More generic support for "soft hotplug" Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 03/21] powerpc/pci: Call pcie_bus_configure_settings() Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 04/21] tty/hvc/hvsi_lib: Updates for running under OPAL v2 Benjamin Herrenschmidt
2011-09-10 14:19 ` Benjamin Herrenschmidt [this message]
2011-09-10 14:19 ` [PATCH 06/21] powerpc: Add skeleton PowerNV platform Benjamin Herrenschmidt
2011-09-12  1:17   ` Michael Neuling
2011-09-12  6:02     ` Geert Uytterhoeven
2011-09-10 14:19 ` [PATCH 07/21] of: Change logic to overwrite cmd_line with CONFIG_CMDLINE Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 08/21] powerpc/powernv: Add CPU hotplug support Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 09/21] powerpc/powernv: Add OPAL takeover from PowerVM Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 10/21] powerpc/powernv: Get kernel command line accross OPAL takeover Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 11/21] powerpc/powernv: Basic support for OPAL Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 12/21] powerpc/powernv: Add support for instanciating OPAL v2 from Open Firmware Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 13/21] powerpc/powernv: Support for OPAL console Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 14/21] powerpc/powernv: Hookup reboot and poweroff functions Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 15/21] powerpc/powernv: Add RTC and NVRAM support plus RTAS fallbacks Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 16/21] powerpc/powernv: Add OPAL ICS backend Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 17/21] powerpc/powernv: Register and handle OPAL interrupts Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 18/21] powerpc/powernv: Machine check and other system interrupts Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 19/21] powerpc/powernv: Add support for p5ioc2 PCI-X and PCIe Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 20/21] powerpc/powernv: Implement MSI support for p5ioc2 PCIe Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 21/21] powerpc/powernv: Handle PCI-X/PCIe reset delay Benjamin Herrenschmidt

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